Magnetic anisotropy and magneto-optical Kerr effect of Co/Pd1_xAux metallic multilayers

Jae Geun Ha, Kentaro Kyuno, Ryoichi Yamamoto

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Abstract

We prepared Co/Pd1-xAux multilayers on glass substrates by RF magnetron sputtering at room temperature. Co/Pd1_xAux multilayers exhibit a magnetic easy axis perpendicular to the film plane up to a larger magnetic layer thickness than do Co/Pd multilayers. In particular, Co/Pdo.7oAuo.3o multilayers became perpendicular at 33 Å. The magnetic anisotropy can be explained by the strain effect. The role of the magnetoelastic energy due to the in-plane strain in the system is pointed out and discussed. We also investigated the magnetooptical polar Kerr effect of these multilayers. The polar Kerr rotation angle θk increases when the Au concentration is 4.5 at.% compared to Co/Pd multilayers but decreases with increasing Au content.

Original languageEnglish
Pages (from-to)677-684
Number of pages8
JournalJournal of Physics Condensed Matter
Volume8
Issue number6
DOIs
Publication statusPublished - 1996 Feb 5

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ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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